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Dairy Products Laboratory, Eastern Utilization Research and Development Division, USDA, Washington 25, D. C.
ABSTRACT
The performance characteristics of a diesel nozzle tester used as a hand homogenizer have been investigated. It has been found that the instrument is capable of homogenizing milk samples as small as several ounces according to the definitions of homogenization. Homogenization efficiency as a function of homogenization pressure and recycling has been studied. The employment of suitable spray-arresting baffles, it has been found, increases homogenization efficiency markedly and prevents the incorporation of air as fine foam. The reconstituted milk obtained by injecting butter oil into skimmilk has been found to resemble market milk in appearanee and in its creaming properties.
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